c) Using the damper (accessory)
A Flue damper is available as on optional
extra. This damper can be used to improve
the control over the fire especially in
installations with flue systems longer than
4.6m
The damper operates by restricting the
flow through the flue pipe. Slowing down
this flow rate, especially when a large fire
is burning, will allow more of the heat to
be conducted into the room, and less heat
escape through the flue pipe.
The fire should me monitored continuously
so that the correct damper setting for the
specific stage of burn can be set.
How a damper is typically used
When the fire is started the damper is set to the Open position, allowing the
maximum draw, while the most smoke can be expected.
When the fire is established, the damper is turned down to position 1. The user will
check that there is no spillage of smoke into the room. If there is spillage, turn the
damper back to the open position.
close
open
1
2
The damper settings are as follows:
Setting % of normal area
Open 100%
Position 2 70%
Position 1 50%
Closed 30%
NOTE: Even the closed position of the damper does not
completely seal the flue pipe. There will always be an opening
for combustion products to pass the damper.
Use the poker stick to operate the damper.
• Place the end of the poker stick through the circle, in
the damper shaft.
• Pull.
• Turn to the desired position
• Push back to lock it in place
• Remove the poker stick.
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